Honda CB450 Black Bomber by Lossa Engineering

Honda CB450 Black Bomber by Lossa Engineering

What we have here is extremely rare and believed to be the only 1965 Honda CB450 Black Bomber in the US.

Owned by famous actor Jason Lee who we already know has some serious taste when it comes to 2 wheelers and quite a collection to match. After finding this beauty Jason took his Black Bomber to Lossa Engineering for a restoration.

1965 Honda CB450 Black Bomber 4The Honda CB450 was the first “big” Honda motorcycle with a 444cc dual overhead cam engine producing 43-45 horsepower (more than 100 HP/ litre). Appearing first in the 1965 four-speed K0 model, and progressing through a series of KX models with various improvements and styling changes, notably a redesigned gas tank and 5 speed transmission in the 1968 K1 model. K0 models are often known as “Black Bomber” models in the U.S. and notable for their distinctive large, square gas tank. In Canada the K1 model was marketed as the Hellcat.

Although the Honda CB450 never sold up to Honda’s expectations, it had excellent engineering for the time, notably including reliable electrical components, an electric starter, and a horizontally split crankcase, all features distinct from the British twins of the era. The most radical feature was the valve springing. Instead of the conventional coil springs, it used “torsion bars” – rods of steel that twisted to provide the spring effect.

Lossa Engineering did a mild touch up on the old restoration and repaired some damage. The entire bike was repainted, all new chrome jewels were installed. Bike also features low bars, small signals, Rare 360° crank motor. Lots of new and old stock parts were used for restoration of Honda CB450 Black Bomber.

We are very impressed with the work Jay LaRossa does out in Long Beach and must say we are yet to find something we don’t like. Lossa Engineering’s website is also worth checking out, it has everything we hope to see when searching for bikes, large images, some info and is super easy to navigate.

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Founder and Chief Editor at Moto Rivista. When he isn’t editing articles for Moto Rivista he is working as a User Experience Strategist. Passionate about two wheels since childhood, plans on building his own motorcycle soon!


  1. I had a 1965 Honda CB450 “Black Bomber” from the spring of 1967 through about 1972. I rode it all over the midwest the summer of 1967, working on carnivals. I crashed the bike three days before being married in June of 1970, and never did get it properly repaired. This bike was sold by the thousands in the US, so it’s highly unlikely to be the only one still around.

  2. I bought one of these in 1965 from a shop Honda Frank's in Weirton,W.Va. for $1152.00 including a new helmet. It was very fast outrunning every Harley,Triumph, and BSA, I came up against! I had a CB750 in later years ,and believe this 450 may have been faster!


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